Charles fabricus carty



Patented sept. 13, |898.

C. F. CARTY.

HYDRAULIC PUMP.

(Application led May 1, 1897.)

(No M odel.)

A TTOHIVE YS.

TH: Nnms PzrERs Co. moro-uma., WASHINGTON. D. c.

CHARLES FABRICUS CARTY, OF WASHINGTON, NORTH CAROLINA.

HYDRAULIC Puivl P.

SPECIFICATION forming'part of Letters Patent No. 610,798, `dated.September 13, 1898. Application led May l, 1897. Serial No. 634,665. (Nomodel.)

T0 @ZZ whom t may concern:

Be it known that I, CHARLES FABRIcUs CARTY, of Vashington, in the countyof Beaufort and State of North Carolina, have invented a new andImproved Hydraulic Pump, of which the following is a full, clear, andexact description.

The object of the invention is to provide a new and improved hydraulicpump which is simple and durable in construction, Very effective inoperation, and arranged to cause the ram to move at a uniform and, ifdesired, a high rate of speed.

The invention consists of certain parts and details and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims. H

Reference is tobe had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

' Figure 1 is a sectional plan view of the improvement. Fig. 2 is a sideelevation of the same with parts in section on the line 2 2 of Fig. l.Fig. 3 is an enlarged cross-section of part of the improvement on theline 3 3 of Fig. 1, showing the mounting for the reel. Fig. 4 is anenlarged face view of one'of the stu'rlingboxes. Fig. 5 is a perspectiveview of the gland for the stuffing-box. Fig. 6 is a sectional sideelevation of a modified form of the improvement. Fig. 7 is a transversesection of another modified form of theimprovement, and Fig. 8 is adetail view of the springpressed catch for the shifting-arm.

The improved hydraulic pump, as illustrated in Figs. l and 2, isprovided with two vessels or casings A A', each having a valvedsuction-pipe B and a valved discharge-pipe B', connected with a ram orlike deviceto actuate the same when Water is forced through the pipe B'.i

In the vessels A A' are mounted to revolve the reels O and C',respectively, on which are fastened the ends of a band, ribbon, or WireD, extending through suitable stuffing-boxes E, arranged in the ends oftubes A2, extending from the casings or vessels AA', as plainlyillustrated in Fig. l. The band D after leaving the stuffing-boxespasses over a pulleyF of a diameter corresponding to the distancebetween the centers of the stuffing-boxes, so

that the band readily passes through the said stuffing-boxes on itsmovement to wind and unwind on the reels C and C'. The pulleyF isjournaled on a slide G, held adjustably in a suitable guideway G' andconnected by a rope G3 With a Weight to pull the pulley tight againstthe band D.

Each of the stuffing-boxes E is preferably provided near its innerflaring mouth with friction-rollers E' and in its outer end with a glandE2, forced against a packing ELl by a suitable cap EB, screwing on theouter end of the stuffing-box. By this arrangement the friction of thetraveling band D is reduced to a minimum. At the same time the band isproperly packed to prevent the escape of Water from the casings A andA'.

Each of the reels C or C' is preferably-mounted on friction-rollers II,as shown in Figs. l 'and 3, the said friction-rollers being supported inthe casings, and access is had thereto from the top of the casings, asindicated in the said Fig. 3. The reels'C and CV are provided at theirtop flanges with beveled gear- Wheels O2 and C3, respectively,"in meshwith beveled pinions I and I', respectively, secured on the outer endsof shafts I2 and I3, respectively, mounted to turn in suitable bearingsattached to the casings, with the outer ends of the shafts I2 I3provided with beveled gearwheels I4 and I5, respectively, in mesh atopposite sides with the beveled gear-Wheels .I and J', secured onclutches -J2 andl J 3,'respectively, mounted to turn in suitablebearings and adapted to be engaged alternately by clutches K and K',respectively, secured on a shaft K2, preferably made tubular and tted toslide on and turn with a shaft L, provided with a pulley L', connectedby belt with other machinery for imparting a rotary motion to the saidlshaft I..

Now it is evident that when the shaft L is rotated it rotates the shaftK2, and when the clutch K of the same is in engagement With the clutchJ2 the shafts I2 and I3 are then rotated simultaneously in such a mannerthat the rotary motion transmitted to the reels C and O' is such thatthe band D winds up on the reel O and unwinds from theI reel O. Now whenthe shaft K2 is shifted to the right to move the clutch K out ofengagement With the clutch .I2 and the clutch K' moves in en- IOOgagement with the clutch J 2 a reverse motion is then given to theshafts l2 I3 and the reels C C to wind up the band D on the reel C. Nowwhen the band D unwinds from a reel in one of the casings A or A' asuction is produced thereby in the said casing to draw water through thepipe B into the casing, and when the band winds up on a reel in thecasing the space taken up by the band within the casing displaces thewater, which is forced through the pipe B' to the ram to actuate thesame. Now as the two reels operate simultaneously, the one winding upthe band and the other unwinding the same, it is evident that one casingills with water while the water in the other is displaced, and viceversa.

In order to shift the shaft K2automatically at aboutthe time the band isnearly unwound from the corresponding reel and wound up on the other, Iprovide the device shown in Figs. 1 and 2. On the shaft K2 is secured aonetoothed wheel N, adapted to engage and turn a gear-wheel N', securedon a shaft N2, carrying a worm O in mesh with a wormwheel O', mounted ona shaft turning in suitable bearings, said worm-wheel being providedwith an arm P, fulcrumed on one face of the said worm-wheel and pressedon by a spring P' against a stop-pin P2 on the face of the saidworm-wheel. The arm Pis adapted to successively engage iiXed pins Q andQ', so as to be held temporarily stationary,while the worm-wheelOrevolves in the direction of the arrow a' until the free end of the armfinallyleaves the fixed pin Q, orQ and strikes a pin R or R2,respectively, secured on an arm R, held between two collars K3 on theshaft K2. lt is understood that the arm P compresses the spring P' whileresting against the pin Q or Q', and when the free end of the arm passesthe pin the spring P suddenly forces the arm against the correspondingpin R' or R2 to shift the arm R either to the right or to the left 'tomove the clutches K and K in or out of en gagem ent with theircorresponding clutches J2 and J 2 on the gear-wheels J A spring-pressedcatch S is provided for locking the shifting-arm R either in a neutralposition, as shown in Fig. 2, or in either of its end positions at thetime the clutches K or K engage the corresponding clutches J2 J 2,respectively. The spring-pressed catch is for this purpose provided withthree notches S S2 S3 for engagement with the lower end of the arm R, asindicated in Fig. 8.

In the device illustrated in Fig. 6 the reel C4, contained in the casingA3 and connected with the wire D', is provided with an internalgear-Wheel C5 in mesh with a gear-wheel l5, secured on a shaft 16,connected with suitable machinery for imparting a forward-andbackwardrotary motion to the shaft I6 to rotate the reel CL1 to wind or unwindthe wire D.

In thek arrangement shown in Fig. 7 the reel CG, contained in the casingA4, is fastened to the shaft I7, journaled in suitable scribed, as it isevident that the same can be` Y greatly varied without deviating fromthe spirit of my invention.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patentl. A hydraulic pump comprising a pair of casingseach having a suction-pipe and a discharge, reels mounted to turn in thecasings, stufling-boxes held on the casings, a band, wire or the likepassing through said stuffingboXes and connected at its ends with thesaid reels, so that on rotating the reels, one winds up the band whilethe other unwinds the same, and a pulley adjustably mounted outside thecasing and over which passes the band on its passage from one casingtothe other, the diameter of the said pulley corresponding to thedistance between the centers of the stuflingboxes, substantially asshown and described.

2. A hydraulic pump, comprising a pair of casings each having asuction-pipe and a discharge, a tube extending from each casing andprovided in its end with a stuffing-box, a reel mounted to turn in eachcasing a band wire or the like passing through the said stuffingboXesand connected at its ends with the said reels, so that on rotating thelatter one winds up the band while the other unwinds the same, and apulley outside the said casings and over which passes the band afterleaving the stuffing-boxes, the diameter of the said pulleycorresponding to the distance between the centers of the stuffing-boxes,substantially as shown and described.

3. A hydraulic pump, comprising a pair of casings each having asuction-pipe and a discharge, reels mounted to turn in said casings andprovided at their top with beveled gearwheels, a band wire or the likeconnected at its ends with the said reels so that on rotating the latterone winds Vup the band while the other unwinds the same, shafts mountedto turn in suitable bearings and provided at their outer ends withbeveled pinions in mesh with the beveled gear-wheelsv on top of thereels, means connected with the inner ends of said shafts for drivingthe same simultaneously, and a reversing mechanism for the drivingmea-ns, substantially as shownand described.

4E. A hydraulic pump, provided With a reversing mechanism for thedriving means, comprising a shaft adapted to be turned and to slide, ashifting-arm for shifting the shaft longitudinally and provided withpins, a wheel driven from the said shaft and carrying a spring-pressedarm normally resting on pins on the said wheel, the said spring-pressedIOO IIO

arm being adapted to engage the pins on the said shifting-arm, and fixedpins adapted to be temporarily engaged by the said springpressed arm,substantially as shown and described.

5. A hydraulic pump comprising a pair of casings each having asuction-pipe and a discharge, friction-rollers conical in shape andjournaled in each of said casings, reels arranged in the casings andeach having its inner edge beveled to engage the said frictionrollersand turn thereon, a band Wire or the like connected at its ends With thesaid reels so that on rotating the latter, one Winds up the band Whilethe other unwinds the same, and driving means for rotating the reelssimultaneously, substantially as set forth.

6. A hydraulic pump, comprising a casing having a suction-pipe and adischarge, a reel mounted to turn in said casing and provided on one ofits flanges with a gear-Wheel, a band Wire or the like adapted to passinto the said casing and Wind upon and unwind from the said reel, ashaft mounted to turn in suitable bearings and provided With a pinion inmesh with the gear-Wheel on the Iiange of the reel, means for drivingthe said shaft, and a reversing mechanism for the driving means,substantially as shown and described.

7. A hydraulic pump provided with a casing having a suction-pipe and adischargepipe, friction-rollers conical in shape and and provided in itsends With a stuffing-box,

areel mounted to turn in each casing, a band, Wire or the like passingthrough the said stuffing-boxes and connected at its ends With the saidreels, so that on rotating the latter one Winds up the band While theother un- Winds the same, a pulley over which the band passes afterleaving the stuffing-boxes, the diameter of the said pulleycorresponding to the distance between the centers of the stuffing-boxes,the said reels being each provided With a beveled gear-Wheel, shaftsmounted to turn in suitable bearings and provided With beveled pinionsin mesh With the beveled gear-Wheels on the reels, means for driving thesaid shafts simultaneously, and a reversing mechanism for the drivingmeans, substantially as Vset forth.

CHARLES FABRIOUS CARTY. Witnesses:

J. F. THOMAS, R. J. MANNING.

